libs/url/src/rfc/detail/relative_part_rule.cpp
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|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/boostorg/url | ||
| 8 | // | ||
| 9 | |||
| 10 | |||
| 11 | #include <boost/url/detail/config.hpp> | ||
| 12 | #include "relative_part_rule.hpp" | ||
| 13 | #include "boost/url/rfc/detail/path_rules.hpp" | ||
| 14 | #include <boost/url/grammar/parse.hpp> | ||
| 15 | |||
| 16 | namespace boost { | ||
| 17 | namespace urls { | ||
| 18 | namespace detail { | ||
| 19 | |||
| 20 | constexpr auto pchars_nc = pchars - ':'; | ||
| 21 | |||
| 22 | auto | ||
| 23 | 1361 | relative_part_rule_t:: | |
| 24 | parse( | ||
| 25 | char const*& it, | ||
| 26 | char const* const end | ||
| 27 | ) const noexcept -> | ||
| 28 | system::result<value_type> | ||
| 29 | { | ||
| 30 | 1361 | value_type t; | |
| 31 |
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1361 | if(it == end) |
| 32 | { | ||
| 33 | // path-empty | ||
| 34 | 126 | return t; | |
| 35 | } | ||
| 36 |
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1235 | if(end - it == 1) |
| 37 | { | ||
| 38 |
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144 | if(*it == '/') |
| 39 | { | ||
| 40 | // path-absolute | ||
| 41 | 78 | t.path = make_pct_string_view_unsafe( | |
| 42 | it, 1, 1); | ||
| 43 | 78 | t.segment_count = 1; | |
| 44 | 78 | ++it; | |
| 45 | 78 | return t; | |
| 46 | } | ||
| 47 |
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66 | if(*it != ':') |
| 48 | { | ||
| 49 | // path-noscheme or | ||
| 50 | // path-empty | ||
| 51 | 65 | auto rv = grammar::parse( | |
| 52 | it, end, segment_rule); | ||
| 53 |
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65 | if(! rv) |
| 54 | ✗ | return rv.error(); | |
| 55 |
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65 | if(! rv->empty()) |
| 56 | { | ||
| 57 | 29 | t.path = *rv; | |
| 58 | 29 | t.segment_count = 1; | |
| 59 | } | ||
| 60 | } | ||
| 61 | // path-empty | ||
| 62 | 66 | return t; | |
| 63 | } | ||
| 64 |
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1091 | if( it[0] == '/' && |
| 65 |
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531 | it[1] == '/') |
| 66 | { | ||
| 67 | // "//" authority | ||
| 68 | 244 | it += 2; | |
| 69 | auto rv = grammar::parse( | ||
| 70 | 244 | it, end, authority_rule); | |
| 71 |
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244 | if(! rv) |
| 72 | ✗ | return rv.error(); | |
| 73 | 244 | t.authority = *rv; | |
| 74 | 244 | t.has_authority = true; | |
| 75 | 244 | } | |
| 76 |
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1091 | if(it == end) |
| 77 | { | ||
| 78 | // path-empty | ||
| 79 | 123 | return t; | |
| 80 | } | ||
| 81 | 968 | auto const it0 = it; | |
| 82 | 968 | std::size_t dn = 0; | |
| 83 |
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968 | if(*it != '/') |
| 84 | { | ||
| 85 | // segment_nc | ||
| 86 | 563 | auto rv = grammar::parse(it, end, | |
| 87 | 563 | pct_encoded_rule(pchars_nc)); | |
| 88 |
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563 | if(! rv) |
| 89 | 1 | return rv.error(); | |
| 90 |
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562 | if(rv->empty()) |
| 91 | 215 | return t; | |
| 92 | 347 | dn += rv->decoded_size(); | |
| 93 | 347 | ++t.segment_count; | |
| 94 |
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347 | if( it != end && |
| 95 |
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272 | *it == ':') |
| 96 | { | ||
| 97 | 40 | BOOST_URL_RETURN_EC( | |
| 98 | grammar::error::mismatch); | ||
| 99 | } | ||
| 100 | } | ||
| 101 |
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3191 | while(it != end) |
| 102 | { | ||
| 103 |
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2534 | if(*it == '/') |
| 104 | { | ||
| 105 | 1340 | ++dn; | |
| 106 | 1340 | ++it; | |
| 107 | 1340 | ++t.segment_count; | |
| 108 | 1340 | continue; | |
| 109 | } | ||
| 110 | 1194 | auto rv = grammar::parse( | |
| 111 | it, end, segment_rule); | ||
| 112 |
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1194 | if(! rv) |
| 113 | ✗ | return rv.error(); | |
| 114 |
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1194 | if(rv->empty()) |
| 115 | 55 | break; | |
| 116 | 1139 | dn += rv->decoded_size(); | |
| 117 | } | ||
| 118 | 712 | t.path = make_pct_string_view_unsafe( | |
| 119 | 712 | it0, it - it0, dn); | |
| 120 | 712 | return t; | |
| 121 | 1361 | } | |
| 122 | |||
| 123 | } // detail | ||
| 124 | } // urls | ||
| 125 | } // boost | ||
| 126 | |||
| 127 |